State Newton's third law with an example.

State Newton's third law with an example.

• A. For every action there is an equal and opposite reaction; e.g., a person pushes against a wall, and the wall pushes back.
• B. Objects in motion stay in motion unless acted on by a net external force.
• C. Force equals mass times acceleration.
• D. Energy is conserved in all interactions.

Answer: (A)